<template>
  <view>
    <view class="goods-list">
      <view v-for="(goods, i) in goodsList" :key="i" @click="gotoDetail(goods)">
        <my-goods :goods="goods"></my-goods>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        // 请求参数对象
        queryObj: {
          // 查询关键字
          query: '',
          //商品分类ID
          cid: '',
          // 页码值
          pagenum: 1,
          // 每页显示多少条数据
          pagesize: 20
        },

        goodsList: [],

        total: 0,
        isLoadding: false
      };
    },
    onLoad(options) {
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      // console.log(this.queryObj);
      this.getGoodsList()
    },
    // 触底的事件
    onReachBottom() {
      if(this.isLoadding) return
      if(this.queryObj.pagenum*this.queryObj.pagesize>=this.total) return uni.$showMsg('数据加载完毕！')
      // 触底的时候先把页面+1
      this.queryObj.pagenum++
      // 调用接口
      this.getGoodsList()
    },
    onPullDownRefresh() {
      // 重置关键数据
      this.queryObj.pagenum=1
      this.total=0
      this.isLoadding=false
      this.goodsList=[]
      // 重新发起数据请求
      this.getGoodsList(()=> uni.stopPullDownRefresh())
    },
    methods: {
      gotoDetail(goods){
        uni.navigateTo({
          url:'/subpkg/goods_detail/goods_detail?goods_id=' +goods.goods_id
        })
      },
      async getGoodsList(cb) {
        // 打开节流阀
        this.isLoadding = true
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
        this.isLoadding=false
        cb&&cb()
        if (res.meta.status !== 200) return uni.$showMsg()
        this.goodsList = [...this.goodsList, ...res.message.goods]
        this.total = res.message.total
        
      }
    }
  }
</script>

<style lang="scss">

</style>
